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hippocampus

Cognitive Decline In Patients With Parkinson Disease Associated With Certain Patterns Of Brain Volume Decreases

Patients with Parkinson disease-related dementia appear to have increased brain atrophy in the hippocampal, temporal and parietal lobes and decreased prefrontal cortex volume compared to patients with Parkinson disease without dementia, according to a report in the December issue of Archives of Neurology, one of the JAMA/Archivesjournals. The study was conducted by Daniel Weintraub, M.D., […]

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Major Brain Similarities Found In Bipolar Disorder And Schizophrenia

Researchers from the Royal College of Surgeons in Ireland (RCSI) and Beaumont Hospital have conducted a study which has found striking brain similarities in bipolar disorder and schizophrenia. The research has also pinpointed for the first time that a process which controls how information is transmitted from neuron to neuron in the brain is altered […]

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Charles DeCarli, M.D.

High Blood Pressure, Diabetes, Smoking, And Obesity In Middle Age May Shrink Brain And Damage Thinking

A new study suggests smoking, high blood pressure, diabetes, and being overweight in middle age may cause brain shrinkage and lead to cognitive problems up to a decade later. The study is published in the August 2, 2011, print issue of Neurology, the medical journal of the American Academy of Neurology.

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monkey

Study Reveals Brain Differences Between Humans And Chimpanzees Linked To Aging

Chimpanzees, the closest living relatives to humans, do not experience a decrease in brain volume as they age like humans do, according to a study by George Washington University researcher Chet Sherwood and his colleagues. There are many similarities between the species, but this discovery reveals an important distinction, demonstrating how humans are unique from […]

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human stem cells

Stem Cells Restore Cognitive Abilities Impaired By Brain Cancer Treatment

Human neural stem cells are capable of helping people regain learning and memory abilities lost due to radiation treatment for brain tumors, a UC Irvine study suggests. Research with rats found that stem cells transplanted two days after cranial irradiation restored cognitive function as measured in one- and four-month assessments. In contrast, irradiated rats not […]

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Michela Gallagher

Existing Anti-Seizure Medication Improves Brain Function In Condition That Leads To Alzheimer’s Disease

An existing anti-seizure drug improves memory and brain function in adults with a form of cognitive impairment that often leads to full-blown Alzheimer’s disease, a Johns Hopkins University study has found. The findings raise the possibility that doctors will someday be able to use the drug, levetiracetam, already approved for use in epilepsy patients, to […]

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neuroimaging of the hippocampus

Small Hippocampus In Elderly Depressed Patients Is Likely An Effect Of Depression Rather Than A Cause

Brain imaging studies have repeatedly found that people with depression have smaller hippocampal volumes than healthy individuals. The hippocampus is a brain region involved in learning and memory, spatial navigation, and the evaluation of complex life situations or “contexts”. However, because in prior studies hippocampal volume was only measured in people once they became depressed, […]

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